首页
试卷库
试题库
当前位置：
X题卡
>
所有题目
>
题目详情
阅读下面这篇短文，短文后列出了7个句子，请根据短文的内容对每个句子作出判断。如果该句提供的是正确信息，请选择A项；如果该句提供的是错误信息，请选择B项：如果该句的信息文章中没有提及，请选择C项。 ...
查看本题答案
包含此试题的试卷
理工类《单选集》真题及答案
点击查看
你可能感兴趣的试题
下面四幅图片描述的是星期一早晨李华在上学路上经历的一件事请根据图片所提供的信息以第三人称用英语写一篇
请根据以下资料说明使用5个规范句子描述全部所给信息内容要求1标题It’sharmfultoCivil
任务型阅读阅读短文按照要求完成各题Whatwilltheweatherbelike?Somepeop
听短文根据短文内容完成下面的表格短文读三遍注chemistry化学lab实验室
402010·广东省四会中学高三第二次质量检测下面有四副图假设女孩叫Mary男孩叫Peter请根据图
下面四幅图片描述的是李明和爷爷从养鸟到放鸟的一段经历请根据图片所提供的信息以第三人称用英语写一篇短文
请根据下面所示内容用英语写一篇短文比较高中学生减负前后的有关情况1.短文须包括所有图表内容可以适当增
二图表式322010·山东运河中学高三10月月考请根据下面所示内容用英语写一篇短文比较高中学生减负前
阅读表达阅读下面短文根据其内容完成后面各项任务IntheCharlesE.JohnsonElemen
基础写作请根据以下表格内容使用5个规范的英语句子介绍学校学生的课外活动情况作文必须全部所给的信息5个
书面表达共15分下面四幅图描述的是星期天上午在中山公园里发生的事请根据图片所提供的信息用英语为你校的
听力填表录音中有一篇短文听短文两遍后根据所听内容填写下面的表格每空不多于三个词DAYTRIPTo:L
书面表达满分25分下面四幅图片描述的是李明和爷爷从养鸟到放鸟的一段经历请根据图片所提供的信息以第三人
第二节书面表达满分25分下面四幅图片描述的是李明和爷爷从养鸟到放鸟的一段经历请根据图片所提供的信息以
请根据以下的说明内容使用连贯的英语句子写一篇短文健康一直是人们关注的话题请根据下面提供的写作内容写一
任务型阅读阅读下面短文然后根据要求完成短文后面的题目APLANEcrashed坠机inLibyaon
阅读表达ManyyearsagotherewasafamilynamedFranklin.Theyl
某英文报社举办以ILikeReading为主题的征文活动你打算投稿请根据以下要点写一篇短文【写作内容
请根据以下的说明内容使用连贯的英语句子写一篇短文健康一直是人们关注的话题请根据下面提供的写作内容写一
IV.写作共两节满分为40分第一节基础写作共1小题满分15分【写作内容】请按照下面6幅图片的提示和所
热门试题
更多
NewTechniquePromisesEarlierCancerDetection AnewtechniquecouldrevolutionizetheearlydetectionofcancergivingsufferersagreaterchanceofbeatingthediseaseAmericanscientistssaid.ResearchersattheMassachusettsInstituteofTechnologyhavedevisedanovelmethodof【51】changesinthenucleusofcellsintheearlieststagesofthedisease.Morethan85percentofallcancersoriginateintheepithelium上皮thatlinestheinternalsurfacesoforgans【52】thebody.Althoughthesearetreatable【53】theyarediagnosedinoneofthepreventablestagesearlybodydamagesarealmost【54】todetectsaidscientistFeld.Wepresentanewoptical-probe光学探子techniquebasedonlight-scatteringspectroscopy分光镜检查thatisable【55】detectprecancerousandearlycancerouscellsincell-richepitheliaheaddedinastatement. Thenewtechniquereliesonthefact【56】cellnucleichangeintheearlystagesofcancerandthedifferencesscatterlightinacharacteristicway.Untilnowthechangeswereonlydetectable【57】abiopsy活检wastakenthescientistssaid.Thenewtechnique【58】inthesciencejournalNaturecanbeusedinconjunctionwitharoutinecancerscreeningandsurveillancetechniquewhichusesanendoscope内窥镜—aflexibleopticalprobe【59】withcameraswhichisinsertedintoacavityinthebody—tocheck【60】cancers. Thescientistssaidthey【61】theirnewtechniqueinfourdifferentorgansduringroutineendoscopiccancerscreening.Thetipoftheopticalprobewasbroughtintocontactwiththetissuetobetestedandthescatteringoflightwasrecordedwithouttheneedforanytissuetobe【62】thescientistssaid.Ourresultsshowthatlight-scatteringspectroscopyhasthepotentialtodetectpre-cancerousbodydamagesandpreinvasivecancersthroughoutthebody.Thistechniqueshould【63】improvetheefficiencyofcancerscreeningandsurveillancethescientistssaid.Cancerisoneofthebiggest【64】inindustrializedcountries.【65】tofiguresfromtheWorldHealthOrganization10millionpeoplewerediagnosedwiththediseaseworldwidein1997andsixmilliondied.
NewTechniquePromisesEarlierCancerDetection AnewtechniquecouldrevolutionizetheearlydetectionofcancergivingsufferersagreaterchanceofbeatingthediseaseAmericanscientistssaid.ResearchersattheMassachusettsInstituteofTechnologyhavedevisedanovelmethodof【51】changesinthenucleusofcellsintheearlieststagesofthedisease.Morethan85percentofallcancersoriginateintheepithelium上皮thatlinestheinternalsurfacesoforgans【52】thebody.Althoughthesearetreatable【53】theyarediagnosedinoneofthepreventablestagesearlybodydamagesarealmost【54】todetectsaidscientistFeld.Wepresentanewoptical-probe光学探子techniquebasedonlight-scatteringspectroscopy分光镜检查thatisable【55】detectprecancerousandearlycancerouscellsincell-richepitheliaheaddedinastatement. Thenewtechniquereliesonthefact【56】cellnucleichangeintheearlystagesofcancerandthedifferencesscatterlightinacharacteristicway.Untilnowthechangeswereonlydetectable【57】abiopsy活检wastakenthescientistssaid.Thenewtechnique【58】inthesciencejournalNaturecanbeusedinconjunctionwitharoutinecancerscreeningandsurveillancetechniquewhichusesanendoscope内窥镜—aflexibleopticalprobe【59】withcameraswhichisinsertedintoacavityinthebody—tocheck【60】cancers. Thescientistssaidthey【61】theirnewtechniqueinfourdifferentorgansduringroutineendoscopiccancerscreening.Thetipoftheopticalprobewasbroughtintocontactwiththetissuetobetestedandthescatteringoflightwasrecordedwithouttheneedforanytissuetobe【62】thescientistssaid.Ourresultsshowthatlight-scatteringspectroscopyhasthepotentialtodetectpre-cancerousbodydamagesandpreinvasivecancersthroughoutthebody.Thistechniqueshould【63】improvetheefficiencyofcancerscreeningandsurveillancethescientistssaid.Cancerisoneofthebiggest【64】inindustrializedcountries.【65】tofiguresfromtheWorldHealthOrganization10millionpeoplewerediagnosedwiththediseaseworldwidein1997andsixmilliondied.
{{*HTML*}}下面有3篇短文每篇短文后有5道题每题后面有4个选项请仔细阅读短文并根据短文回答其后面的问题从4个选项中选择1个最佳答案? ?{{B}}第一篇{{/B}} ??Oneofthegreatestmysteriesofthe worldfor’whichscientisthavesofarbeenunabletofindanysatisfactory explanationistheBermudaTrianglesometimecalledtheGraveyardofthe Atlantic.ThisisanareaofthewesternAtlanticbetweenBermudaandFlorida roughlytriangularinshapewheresince1945atleastahundredshipsandplanes andoverathousandpeoplehavedisappeared.Nowreckagehadbeenfoundno bodieslifebeltsoranyotherevidenceofdisater.Itisasiftheseplanes shipsandpeoplehadneverexisted.Insomecasesaroutineradiomessagehas beenreceivedfromaircraftreportingeverythinginorderafewminutesbefore allcontactwaslostinothersaweakS.O.Smessagehasbeenpickedupand inperfectweatherinexplicablereferencestofogandlossofbearings.Inthe extraordinarycaseoffiveU.$.navyplanesdisappearingonaroutinemission fromFloridatherescueplacesenttolocatethemvanishedalso.Therehave beenreferencestothecuriouswhitelightorhazewhichisafeatureofthesea inpartofthisareaanditisinterestingtonotethatnotonlywasthis lightorstreaksoflightobservedbytheastronautsontheirwaytospace butwasalsonotedbyColumbusfivecenturiesago.Whetherthislighthasany connectionwiththemysteriousdisappearanceisunknown-itisjustanother curiouscircumstanceasyetunexplained.??Manytheoriessome borderingonthefantastichavebeenadvancedtoaccountforthedisturbing incidentsthatoccurintheareaoftheBermudaTriangle.Ithasbeenasked whetherthesedisappearancesarecausedbyextraterrestrialactivitybysome undiscoveredsourceofenergyorsomedimensionoftimeorspaceunguessedat byMan.Thisisnoanswerandspeculationcontinuesasanxiety increases.ThefiveUnitedStatedNavyplanesdisappearedwhen______.
NewTechniquePromisesEarlierCancerDetection AnewtechniquecouldrevolutionizetheearlydetectionofcancergivingsufferersagreaterchanceofbeatingthediseaseAmericanscientistssaid.ResearchersattheMassachusettsInstituteofTechnologyhavedevisedanovelmethodof【51】changesinthenucleusofcellsintheearlieststagesofthedisease.Morethan85percentofallcancersoriginateintheepithelium上皮thatlinestheinternalsurfacesoforgans【52】thebody.Althoughthesearetreatable【53】theyarediagnosedinoneofthepreventablestagesearlybodydamagesarealmost【54】todetectsaidscientistFeld.Wepresentanewoptical-probe光学探子techniquebasedonlight-scatteringspectroscopy分光镜检查thatisable【55】detectprecancerousandearlycancerouscellsincell-richepitheliaheaddedinastatement. Thenewtechniquereliesonthefact【56】cellnucleichangeintheearlystagesofcancerandthedifferencesscatterlightinacharacteristicway.Untilnowthechangeswereonlydetectable【57】abiopsy活检wastakenthescientistssaid.Thenewtechnique【58】inthesciencejournalNaturecanbeusedinconjunctionwitharoutinecancerscreeningandsurveillancetechniquewhichusesanendoscope内窥镜—aflexibleopticalprobe【59】withcameraswhichisinsertedintoacavityinthebody—tocheck【60】cancers. Thescientistssaidthey【61】theirnewtechniqueinfourdifferentorgansduringroutineendoscopiccancerscreening.Thetipoftheopticalprobewasbroughtintocontactwiththetissuetobetestedandthescatteringoflightwasrecordedwithouttheneedforanytissuetobe【62】thescientistssaid.Ourresultsshowthatlight-scatteringspectroscopyhasthepotentialtodetectpre-cancerousbodydamagesandpreinvasivecancersthroughoutthebody.Thistechniqueshould【63】improvetheefficiencyofcancerscreeningandsurveillancethescientistssaid.Cancerisoneofthebiggest【64】inindustrializedcountries.【65】tofiguresfromtheWorldHealthOrganization10millionpeoplewerediagnosedwiththediseaseworldwidein1997andsixmilliondied.
{{*HTML*}}{{B}}第二篇{{/B}} ??Videorecordersandphotocopierseven ticketmachinesontherailwaysoftenseemunnecessarilydifficulttouse.Last DecemberIboughtmyselfavideocassetterecorderVCRdescribedassimpleto use.InthefirstthreeweeksIfailedrepeatedlytoprogramthemachineto recordfromtheTVandaftermonthsofpracticeIstillmademistakes.Iamnot alone.According?toasurveylastyearbyFergusontheBritish manufacturermorethanoneinfourVCRownersneverusethetimer定时器ontheir machinestorecordaprogramme:theydon’tuseitbecausethey’vefounditfar toohardtooperate.??Sowhydomanufacturerskeepondesigning andproducingVCRsthatareawkwardtouseiftheproblemsaresoobvious. Firsttheproblemwenoticearenotobvioustotechnicallyminded ?有技术思想的designerswithyearso[experienceandtrainedtounderstandhow applianceswork.Secondlydesignerstendtoaddoneortwofeaturesatatime toeachmodelwhereasyouorIfaceallamachine’featuresatonce.Thirdly althoughfindingproblemsinafinishedproductiseasyitistoolatebythen todoanythingaboutthedesign.Finallyifmanufacturerscangetawaywith sellingproductsthataredifficulttouseitisnotworththeeffortofany oneofthemtomakeimprovements.??Somemanufacturerssaythey concentrateonprovidingawiderangeoffeaturesratherthanonmakingthe machineseasytouse.ButthatgivesrisetothequestionWhycan’tyouhave featuresthatareeasytouse?Theanswerisyoucan.??Good designpracticeisamixtureofspecificproceduresandgeneralprinciples.For astartdesignersshouldbuildanoriginalmodelofthemachineandtryitout ontypicalmembersofthepublic—notoncolleaguesinthedevelopment laboratory.Simplepublictrialswouldquicklyrevealmanydesignmistakes.In anidealworldtherewouldbesomewaysofcontrollingqualitysuchasthatthe VCRmustberedesignedrepeatedlyuntilsay90percentofuserscanwork90 percentofthefeaturescorrectly90percentofthe time.Accordingtotheauthormanufacturers______.
{{*HTML*}}{{B}}第二篇{{/B}} ??Videorecordersandphotocopierseven ticketmachinesontherailwaysoftenseemunnecessarilydifficulttouse.Last DecemberIboughtmyselfavideocassetterecorderVCRdescribedassimpleto use.InthefirstthreeweeksIfailedrepeatedlytoprogramthemachineto recordfromtheTVandaftermonthsofpracticeIstillmademistakes.Iamnot alone.According?toasurveylastyearbyFergusontheBritish manufacturermorethanoneinfourVCRownersneverusethetimer定时器ontheir machinestorecordaprogramme:theydon’tuseitbecausethey’vefounditfar toohardtooperate.??Sowhydomanufacturerskeepondesigning andproducingVCRsthatareawkwardtouseiftheproblemsaresoobvious. Firsttheproblemwenoticearenotobvioustotechnicallyminded ?有技术思想的designerswithyearso[experienceandtrainedtounderstandhow applianceswork.Secondlydesignerstendtoaddoneortwofeaturesatatime toeachmodelwhereasyouorIfaceallamachine’featuresatonce.Thirdly althoughfindingproblemsinafinishedproductiseasyitistoolatebythen todoanythingaboutthedesign.Finallyifmanufacturerscangetawaywith sellingproductsthataredifficulttouseitisnotworththeeffortofany oneofthemtomakeimprovements.??Somemanufacturerssaythey concentrateonprovidingawiderangeoffeaturesratherthanonmakingthe machineseasytouse.ButthatgivesrisetothequestionWhycan’tyouhave featuresthatareeasytouse?Theanswerisyoucan.??Good designpracticeisamixtureofspecificproceduresandgeneralprinciples.For astartdesignersshouldbuildanoriginalmodelofthemachineandtryitout ontypicalmembersofthepublic—notoncolleaguesinthedevelopment laboratory.Simplepublictrialswouldquicklyrevealmanydesignmistakes.In anidealworldtherewouldbesomewaysofcontrollingqualitysuchasthatthe VCRmustberedesignedrepeatedlyuntilsay90percentofuserscanwork90 percentofthefeaturescorrectly90percentofthe time.AccordingtothepassagebeforegVCRissoldonthemarketitsoriginalmodelshouldbetriedout______.
{{*HTML*}}下面有3篇短文每篇短文后有5道题每题后面有4个选项请仔细阅读短文并根据短文回答其后面的问题从4个选项中选择1个最佳答案? ?{{B}}第一篇{{/B}} ??Oneofthegreatestmysteriesofthe worldfor’whichscientisthavesofarbeenunabletofindanysatisfactory explanationistheBermudaTrianglesometimecalledtheGraveyardofthe Atlantic.ThisisanareaofthewesternAtlanticbetweenBermudaandFlorida roughlytriangularinshapewheresince1945atleastahundredshipsandplanes andoverathousandpeoplehavedisappeared.Nowreckagehadbeenfoundno bodieslifebeltsoranyotherevidenceofdisater.Itisasiftheseplanes shipsandpeoplehadneverexisted.Insomecasesaroutineradiomessagehas beenreceivedfromaircraftreportingeverythinginorderafewminutesbefore allcontactwaslostinothersaweakS.O.Smessagehasbeenpickedupand inperfectweatherinexplicablereferencestofogandlossofbearings.Inthe extraordinarycaseoffiveU.$.navyplanesdisappearingonaroutinemission fromFloridatherescueplacesenttolocatethemvanishedalso.Therehave beenreferencestothecuriouswhitelightorhazewhichisafeatureofthesea inpartofthisareaanditisinterestingtonotethatnotonlywasthis lightorstreaksoflightobservedbytheastronautsontheirwaytospace butwasalsonotedbyColumbusfivecenturiesago.Whetherthislighthasany connectionwiththemysteriousdisappearanceisunknown-itisjustanother curiouscircumstanceasyetunexplained.??Manytheoriessome borderingonthefantastichavebeenadvancedtoaccountforthedisturbing incidentsthatoccurintheareaoftheBermudaTriangle.Ithasbeenasked whetherthesedisappearancesarecausedbyextraterrestrialactivitybysome undiscoveredsourceofenergyorsomedimensionoftimeorspaceunguessedat byMan.Thisisnoanswerandspeculationcontinuesasanxiety increases.WhatisthemostpuzzlingfeatureoftheincidentsthathaveoccurredintheBermudaTrianglearea?
TheInternetallowsusto{{U}}transmit{{/U}}messagesacrosstheworldinaninstant.
{{*HTML*}}下面有3篇短文每篇短文后有5道题每题后面有4个选项请仔细阅读短文并根据短文回答其后面的问题从4个选项中选择1个最佳答案? ?{{B}}第一篇{{/B}} ??Oneofthegreatestmysteriesofthe worldfor’whichscientisthavesofarbeenunabletofindanysatisfactory explanationistheBermudaTrianglesometimecalledtheGraveyardofthe Atlantic.ThisisanareaofthewesternAtlanticbetweenBermudaandFlorida roughlytriangularinshapewheresince1945atleastahundredshipsandplanes andoverathousandpeoplehavedisappeared.Nowreckagehadbeenfoundno bodieslifebeltsoranyotherevidenceofdisater.Itisasiftheseplanes shipsandpeoplehadneverexisted.Insomecasesaroutineradiomessagehas beenreceivedfromaircraftreportingeverythinginorderafewminutesbefore allcontactwaslostinothersaweakS.O.Smessagehasbeenpickedupand inperfectweatherinexplicablereferencestofogandlossofbearings.Inthe extraordinarycaseoffiveU.$.navyplanesdisappearingonaroutinemission fromFloridatherescueplacesenttolocatethemvanishedalso.Therehave beenreferencestothecuriouswhitelightorhazewhichisafeatureofthesea inpartofthisareaanditisinterestingtonotethatnotonlywasthis lightorstreaksoflightobservedbytheastronautsontheirwaytospace butwasalsonotedbyColumbusfivecenturiesago.Whetherthislighthasany connectionwiththemysteriousdisappearanceisunknown-itisjustanother curiouscircumstanceasyetunexplained.??Manytheoriessome borderingonthefantastichavebeenadvancedtoaccountforthedisturbing incidentsthatoccurintheareaoftheBermudaTriangle.Ithasbeenasked whetherthesedisappearancesarecausedbyextraterrestrialactivitybysome undiscoveredsourceofenergyorsomedimensionoftimeorspaceunguessedat byMan.Thisisnoanswerandspeculationcontinuesasanxiety increases.Thecauseofthedisappearancesofshipsandplanesintheareais______.
Thisreport{{U}}concerns{{/U}}amanwholivesinLondonbutworksinParis.
NewTechniquePromisesEarlierCancerDetection AnewtechniquecouldrevolutionizetheearlydetectionofcancergivingsufferersagreaterchanceofbeatingthediseaseAmericanscientistssaid.ResearchersattheMassachusettsInstituteofTechnologyhavedevisedanovelmethodof【51】changesinthenucleusofcellsintheearlieststagesofthedisease.Morethan85percentofallcancersoriginateintheepithelium上皮thatlinestheinternalsurfacesoforgans【52】thebody.Althoughthesearetreatable【53】theyarediagnosedinoneofthepreventablestagesearlybodydamagesarealmost【54】todetectsaidscientistFeld.Wepresentanewoptical-probe光学探子techniquebasedonlight-scatteringspectroscopy分光镜检查thatisable【55】detectprecancerousandearlycancerouscellsincell-richepitheliaheaddedinastatement. Thenewtechniquereliesonthefact【56】cellnucleichangeintheearlystagesofcancerandthedifferencesscatterlightinacharacteristicway.Untilnowthechangeswereonlydetectable【57】abiopsy活检wastakenthescientistssaid.Thenewtechnique【58】inthesciencejournalNaturecanbeusedinconjunctionwitharoutinecancerscreeningandsurveillancetechniquewhichusesanendoscope内窥镜—aflexibleopticalprobe【59】withcameraswhichisinsertedintoacavityinthebody—tocheck【60】cancers. Thescientistssaidthey【61】theirnewtechniqueinfourdifferentorgansduringroutineendoscopiccancerscreening.Thetipoftheopticalprobewasbroughtintocontactwiththetissuetobetestedandthescatteringoflightwasrecordedwithouttheneedforanytissuetobe【62】thescientistssaid.Ourresultsshowthatlight-scatteringspectroscopyhasthepotentialtodetectpre-cancerousbodydamagesandpreinvasivecancersthroughoutthebody.Thistechniqueshould【63】improvetheefficiencyofcancerscreeningandsurveillancethescientistssaid.Cancerisoneofthebiggest【64】inindustrializedcountries.【65】tofiguresfromtheWorldHealthOrganization10millionpeoplewerediagnosedwiththediseaseworldwidein1997andsixmilliondied.
Georgeisveryproudofhisnew{{U}}status{{/U}}inthecompany.
{{*HTML*}}阅读下面这篇短文短文后列出7个句子请根据短文的内容对每个句子做出判断如果该句提供的是正确信息请选择A如果该句提供的是错误信息请选择B如果该句的信息文章中没有提及请选择C ??Evenplantscanrunafever especiallywhenthey’reunderattackbyinsectsordisease.Butunlikehumans plantscanhavetheirtemperaturetakenfrom3000feetaway—straightup.A decadeagoadaptingtheinfrared红外线scanningtechnologydevelopedfor militarypurposesandothersatellitesphysicistStephenPaleycameupwitha quickwaytotakethetemperatureofcropstodeterminewhichonesareunder stress.Thegoalwastoletfarmersprecisely?targetpesticide杀虫剂 sprayingratherthanrainpoisononawholefieldwhichinvariably ?includesplantsthatdon’thavepest害虫problems.??Even betterPaley’sRemoteScanningServicesCompanycoulddetectcropproblems beforetheybecamevisibletotheeye.Mountedonaplaneflownat3000feetat nightaninfraredscannermeasuredtheheatemittedbycrops.ThedataWere transformedintoacolor-codedmapshowingwhereplantswererunningfevers. Farmerscouldthenspot-sprayusing50to70percentlesspesticidethanthey otherwisewould.??ThebadnewsisthatPaley’scompanyclosed downin1984afteronlythreeyears.Farmersresistedthenewtechnologyand long-termbackerswerehardtofind.Butwiththerenewedconcernabout pesticidesonproduceandrefinementsininfraredscanningPaleyhopestoget backintooperation.Agricultureexpertshavenodoubtthetechnologyworks. Thistechniquecanbeusedon75percentofagriculturallandintheUnited StatessaysGeorgeOertherofTexasA&M.RayJacksonwhorecentlyretired fromtheDepartmentofAgriculturethinksremoteinfraredcropscanningcould beadoptedbytheendofthedecade.ButonlyifPaleyfindsthefinancial backingwhichhefailedtoobtain10yearsago.Inordertoapplypesticidesprayingpreciselywecanuseinfraredscanningtolocatetheproblemarea.
NewTechniquePromisesEarlierCancerDetection AnewtechniquecouldrevolutionizetheearlydetectionofcancergivingsufferersagreaterchanceofbeatingthediseaseAmericanscientistssaid.ResearchersattheMassachusettsInstituteofTechnologyhavedevisedanovelmethodof【51】changesinthenucleusofcellsintheearlieststagesofthedisease.Morethan85percentofallcancersoriginateintheepithelium上皮thatlinestheinternalsurfacesoforgans【52】thebody.Althoughthesearetreatable【53】theyarediagnosedinoneofthepreventablestagesearlybodydamagesarealmost【54】todetectsaidscientistFeld.Wepresentanewoptical-probe光学探子techniquebasedonlight-scatteringspectroscopy分光镜检查thatisable【55】detectprecancerousandearlycancerouscellsincell-richepitheliaheaddedinastatement. Thenewtechniquereliesonthefact【56】cellnucleichangeintheearlystagesofcancerandthedifferencesscatterlightinacharacteristicway.Untilnowthechangeswereonlydetectable【57】abiopsy活检wastakenthescientistssaid.Thenewtechnique【58】inthesciencejournalNaturecanbeusedinconjunctionwitharoutinecancerscreeningandsurveillancetechniquewhichusesanendoscope内窥镜—aflexibleopticalprobe【59】withcameraswhichisinsertedintoacavityinthebody—tocheck【60】cancers. Thescientistssaidthey【61】theirnewtechniqueinfourdifferentorgansduringroutineendoscopiccancerscreening.Thetipoftheopticalprobewasbroughtintocontactwiththetissuetobetestedandthescatteringoflightwasrecordedwithouttheneedforanytissuetobe【62】thescientistssaid.Ourresultsshowthatlight-scatteringspectroscopyhasthepotentialtodetectpre-cancerousbodydamagesandpreinvasivecancersthroughoutthebody.Thistechniqueshould【63】improvetheefficiencyofcancerscreeningandsurveillancethescientistssaid.Cancerisoneofthebiggest【64】inindustrializedcountries.【65】tofiguresfromtheWorldHealthOrganization10millionpeoplewerediagnosedwiththediseaseworldwidein1997andsixmilliondied.
{{*HTML*}}阅读下面这篇短文短文后列出7个句子请根据短文的内容对每个句子做出判断如果该句提供的是正确信息请选择A如果该句提供的是错误信息请选择B如果该句的信息文章中没有提及请选择C ??Evenplantscanrunafever especiallywhenthey’reunderattackbyinsectsordisease.Butunlikehumans plantscanhavetheirtemperaturetakenfrom3000feetaway—straightup.A decadeagoadaptingtheinfrared红外线scanningtechnologydevelopedfor militarypurposesandothersatellitesphysicistStephenPaleycameupwitha quickwaytotakethetemperatureofcropstodeterminewhichonesareunder stress.Thegoalwastoletfarmersprecisely?targetpesticide杀虫剂 sprayingratherthanrainpoisononawholefieldwhichinvariably ?includesplantsthatdon’thavepest害虫problems.??Even betterPaley’sRemoteScanningServicesCompanycoulddetectcropproblems beforetheybecamevisibletotheeye.Mountedonaplaneflownat3000feetat nightaninfraredscannermeasuredtheheatemittedbycrops.ThedataWere transformedintoacolor-codedmapshowingwhereplantswererunningfevers. Farmerscouldthenspot-sprayusing50to70percentlesspesticidethanthey otherwisewould.??ThebadnewsisthatPaley’scompanyclosed downin1984afteronlythreeyears.Farmersresistedthenewtechnologyand long-termbackerswerehardtofind.Butwiththerenewedconcernabout pesticidesonproduceandrefinementsininfraredscanningPaleyhopestoget backintooperation.Agricultureexpertshavenodoubtthetechnologyworks. Thistechniquecanbeusedon75percentofagriculturallandintheUnited StatessaysGeorgeOertherofTexasA&M.RayJacksonwhorecentlyretired fromtheDepartmentofAgriculturethinksremoteinfraredcropscanningcould beadoptedbytheendofthedecade.ButonlyifPaleyfindsthefinancial backingwhichhefailedtoobtain10yearsago.Theapplicationofinfraredscanningtechnologytoagriculturemetwithsomedifficultiesduetoitsfailuretohelpincreaseproduction.
{{*HTML*}}{{B}}第三篇{{/B}} ??Alexandre-GustaveBoenickhausenEiffel wasoneofthe19thcentury’smasterbuilders.Wieldingironinnewwayshe builtbridgesforthecentury’sburgeoningrailwaysinEuropeSouthAmericaand Indochina.AndaftersculptorFredericAugusteBartholdidesignedacolossal 151-footstatueofcoppersheetsin1871heturnedtoFrance’smagicianofiron foritsinternalskeleton.ThusEiffelwasinstrumentalincreatingtwoofthe best-knownmonumentstolibertyinthemodernworld—theStatueofLibertyand theEiffelTowerwhichwasbuilttomarkthecentennialoftheFrench Revolution.??DuringtheNazioccupationinWorldWarIIthe tower’spersonnelsabotagedtheelevators?todeprivetheenemyofaview ofParis.Hitlerwhorefusedtoclimbthe1710stepstothetopposedforhis picturewiththetowerinthebackground.Thecityknewliberationwasathand onAugust251944whentwoParisiansbravingbulletsricochetingthroughthe girderstoredowntheswastikaandhoistedthetricolor.??The towerillustratesEiffel’sgeniusformeticulousinnovativeengineering.After hehadsetmassivestonefoundationsbesidetheSeinefourgiantleaning pillarsencompassingfouracreswerejoined200feetupatthefirstplatform anironbeltoftrussesrunningfrompillartopillar.Thisbelthadtobe perfectlyhorizontal;ifoutoflinebyahairthestructurewouldtilt disastrouslyat1000feet.Eiffel’ssolution:hydraulicjacksembeddedineach 440-toncolumnenablinghimtofine-tuneitsangleperfectly.? ?NextEiffeldeployedcreepercranesthatclimbedthetowerasitgrew helpingtohoist15000girdersand2.5millionrivetstotheexactspotwhere needed.Astonishinglythetowerwascompletedinonlytwoyearsandtwomonths forthreepercentlessthanits$1.5-millionbudgetwithnofatalitiesamong the250workers.??ThankstoEiffel’smasteryofdesignthetower givesthewindlittletoseize.Seenfromcertainanglestheoddlybeautiful traceryofintersectingironbeamsappearsalmosttransparent.Thetowerisso lightthatpressureonthefoundationsisonlyabout60poundspersquare inch—notmuchmorethanawell-fedgentlemanexertsonthefloorwhensittingin achair.HowdidEiffelmaketheironbeltrunningfrompillartopillarperfectlyhorizontal?
{{*HTML*}}阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为规定段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 ??Humanbeingshavelittledirectcontroloverthevolumeof waterintheatmosphere.Butweproduceothergreenhousegasesthatintensify theeffect.TheIPCCestimatesthatrisingCO2emissionsmostlyfrom burningfossilfuelsaccountforabout60percentofthewarmingobservedsince 1850Carbondioxideconcentrationhasbeenincreasingbyabout0.3percenta yearanditisnowabout30percenthigherthanitwasbeforetheindustrial revolution.2.??Therelentlessaccumulationofgreenhousegases hasledtheIPCCtoprojectthatinthenexthundredyearsaverageglobal temperatureswillriseby1to3.5degreesC.Thatmaynotseemlikemuch. Yetthelittleiceageananomalouscoldsnapthatpeakedfrom1570to1730 andforcedEuropeanfarmerstoabandontheirfieldswascausedbyachangeof onlyhalfadegree.3.??Thecompeermodelsusedtoproject greenhouseeffectsfarintothefuturearestillbeingimprovedtoaccommodatea rapidlygrowingfontofknowledge.Anditisremarkablydifficulttodetecta definitivesignatureofhumanactivityintheworld’swidelyfluctuating climaterecord.Toprojectfutureclimatepatternsscientistsusecomputer simulationsoftheinteractionsamonglandairwatericeandsunlight.These generalcirculationmodelsorGCMsconsistofequationsrepresentingtheknown lawsofatmosphericphysicsandoceancirculation.Foreachsectionofthe planettheycalculatetheeffectofsuchfactorsasairtemperaturethe Earth’srotationsurfacefrictionatsealevelrainfallandotherclimatic conditions.Aperfectmodelifgivenenoughinformationaboutconditionson Earthseveralhundredyearsagocouldprovideanexactdescriptionoftoday’s climate.Onlyveryrecentlyhavemodelsbeendevelopedthatarecapableof realisticallydepictingthepresentglobalclimatewithoutalotoftinkering— adjustmentsoftencalledfudgefactors.4.??Inpartthisis becauseonlythemostpowerfulcomputersarefastenoughtohandlethejoband inpartbecausesomeaspectsofclimatechangearestillmysterious.Evenavid proponentscautionthatGCMsarenotyettrustworthyforpredictingdetailed effectsinindividualregions:?Modelsdividetheworld’ssurfaceinto gridsthataretypicallyabout200milesonasidebutoceaneddiesstormsand cloudactivitytakeplaceonfarsmallerscales.Themodelersthereforehave tocompensatewithapproximations.AccordingtoKevinTrenberthchiefclimate ?analystattheNationalCenterforAtmosphericResearchinBoulder ColoradoallGCMsprojectglobalwarmingbuttheycanprovideonlyarangeof projectedtemperaturechange.5.??Theroleofcloudsand airbornesuspendedparticlescalledaerosolsisnoeasiertofactorintomodels. CloudsshadetheEarth’ssurfacepromotingcooling.Butdependingontheir altitudedensityandotherconditionstheycanalsotrapoutgoingheat promotingwarming.Aerosolsarealsoequallytricky.Someencouragewatervapor intheairtocondenseintotinydroplets.Theresultingcloudsaredenseand shinyshadingthesurfaceforweeks.Thusironically?ourownpollution mainlyfromcombustionofsulfur-bearingcoalandoilmaytemporarily ?havesparedussomeeffectsofglobalwarming.6.??Yetthe warmingcouldbepartofthenaturalrollercoasterofaverageglobalair temperatureswhichhavevariedbyasmuchas6degreesCduringthepast 150000years.Climatefluctuatesoverthousandsofyearsowingtoperiodic changesinthesun’senergyoutputandintheEarth’sorbitandtiltbothof whichinfluencetheamountandintensityofsunlightreachingthesurface.Proof oftheseclimateshiftscomesfromvariationsinthecompositionofice extractedincoresfromthedepthsofancientglaciersinGreenlandand Antarcticaandfromdifferencesamongmarineorganismsinsedimentcorestaken fromtheseafloor.Itispossiblethataround1860whenscientistsfirstbegan keepingdependabletemperaturerecordstheplanetwasstillrecoveringfromthe littleiceage.Thepresentwarmingmightbeacontinuationofthatrebound andenhancedgreenhousewarmingmaybesuperimposedonandcamouflagedbythat trend.Recentlymodelshavebeencreatedwhichgive______
{{*HTML*}}阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为规定段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 ??Humanbeingshavelittledirectcontroloverthevolumeof waterintheatmosphere.Butweproduceothergreenhousegasesthatintensify theeffect.TheIPCCestimatesthatrisingCO2emissionsmostlyfrom burningfossilfuelsaccountforabout60percentofthewarmingobservedsince 1850Carbondioxideconcentrationhasbeenincreasingbyabout0.3percenta yearanditisnowabout30percenthigherthanitwasbeforetheindustrial revolution.2.??Therelentlessaccumulationofgreenhousegases hasledtheIPCCtoprojectthatinthenexthundredyearsaverageglobal temperatureswillriseby1to3.5degreesC.Thatmaynotseemlikemuch. Yetthelittleiceageananomalouscoldsnapthatpeakedfrom1570to1730 andforcedEuropeanfarmerstoabandontheirfieldswascausedbyachangeof onlyhalfadegree.3.??Thecompeermodelsusedtoproject greenhouseeffectsfarintothefuturearestillbeingimprovedtoaccommodatea rapidlygrowingfontofknowledge.Anditisremarkablydifficulttodetecta definitivesignatureofhumanactivityintheworld’swidelyfluctuating climaterecord.Toprojectfutureclimatepatternsscientistsusecomputer simulationsoftheinteractionsamonglandairwatericeandsunlight.These generalcirculationmodelsorGCMsconsistofequationsrepresentingtheknown lawsofatmosphericphysicsandoceancirculation.Foreachsectionofthe planettheycalculatetheeffectofsuchfactorsasairtemperaturethe Earth’srotationsurfacefrictionatsealevelrainfallandotherclimatic conditions.Aperfectmodelifgivenenoughinformationaboutconditionson Earthseveralhundredyearsagocouldprovideanexactdescriptionoftoday’s climate.Onlyveryrecentlyhavemodelsbeendevelopedthatarecapableof realisticallydepictingthepresentglobalclimatewithoutalotoftinkering— adjustmentsoftencalledfudgefactors.4.??Inpartthisis becauseonlythemostpowerfulcomputersarefastenoughtohandlethejoband inpartbecausesomeaspectsofclimatechangearestillmysterious.Evenavid proponentscautionthatGCMsarenotyettrustworthyforpredictingdetailed effectsinindividualregions:?Modelsdividetheworld’ssurfaceinto gridsthataretypicallyabout200milesonasidebutoceaneddiesstormsand cloudactivitytakeplaceonfarsmallerscales.Themodelersthereforehave tocompensatewithapproximations.AccordingtoKevinTrenberthchiefclimate ?analystattheNationalCenterforAtmosphericResearchinBoulder ColoradoallGCMsprojectglobalwarmingbuttheycanprovideonlyarangeof projectedtemperaturechange.5.??Theroleofcloudsand airbornesuspendedparticlescalledaerosolsisnoeasiertofactorintomodels. CloudsshadetheEarth’ssurfacepromotingcooling.Butdependingontheir altitudedensityandotherconditionstheycanalsotrapoutgoingheat promotingwarming.Aerosolsarealsoequallytricky.Someencouragewatervapor intheairtocondenseintotinydroplets.Theresultingcloudsaredenseand shinyshadingthesurfaceforweeks.Thusironically?ourownpollution mainlyfromcombustionofsulfur-bearingcoalandoilmaytemporarily ?havesparedussomeeffectsofglobalwarming.6.??Yetthe warmingcouldbepartofthenaturalrollercoasterofaverageglobalair temperatureswhichhavevariedbyasmuchas6degreesCduringthepast 150000years.Climatefluctuatesoverthousandsofyearsowingtoperiodic changesinthesun’senergyoutputandintheEarth’sorbitandtiltbothof whichinfluencetheamountandintensityofsunlightreachingthesurface.Proof oftheseclimateshiftscomesfromvariationsinthecompositionofice extractedincoresfromthedepthsofancientglaciersinGreenlandand Antarcticaandfromdifferencesamongmarineorganismsinsedimentcorestaken fromtheseafloor.Itispossiblethataround1860whenscientistsfirstbegan keepingdependabletemperaturerecordstheplanetwasstillrecoveringfromthe littleiceage.Thepresentwarmingmightbeacontinuationofthatrebound andenhancedgreenhousewarmingmaybesuperimposedonandcamouflagedbythat trend.Computersimulationmodelsthatlookattheinteractionsusingscientificknowledgearecalled______
{{*HTML*}}{{B}}第三篇{{/B}} ??Alexandre-GustaveBoenickhausenEiffel wasoneofthe19thcentury’smasterbuilders.Wieldingironinnewwayshe builtbridgesforthecentury’sburgeoningrailwaysinEuropeSouthAmericaand Indochina.AndaftersculptorFredericAugusteBartholdidesignedacolossal 151-footstatueofcoppersheetsin1871heturnedtoFrance’smagicianofiron foritsinternalskeleton.ThusEiffelwasinstrumentalincreatingtwoofthe best-knownmonumentstolibertyinthemodernworld—theStatueofLibertyand theEiffelTowerwhichwasbuilttomarkthecentennialoftheFrench Revolution.??DuringtheNazioccupationinWorldWarIIthe tower’spersonnelsabotagedtheelevators?todeprivetheenemyofaview ofParis.Hitlerwhorefusedtoclimbthe1710stepstothetopposedforhis picturewiththetowerinthebackground.Thecityknewliberationwasathand onAugust251944whentwoParisiansbravingbulletsricochetingthroughthe girderstoredowntheswastikaandhoistedthetricolor.??The towerillustratesEiffel’sgeniusformeticulousinnovativeengineering.After hehadsetmassivestonefoundationsbesidetheSeinefourgiantleaning pillarsencompassingfouracreswerejoined200feetupatthefirstplatform anironbeltoftrussesrunningfrompillartopillar.Thisbelthadtobe perfectlyhorizontal;ifoutoflinebyahairthestructurewouldtilt disastrouslyat1000feet.Eiffel’ssolution:hydraulicjacksembeddedineach 440-toncolumnenablinghimtofine-tuneitsangleperfectly.? ?NextEiffeldeployedcreepercranesthatclimbedthetowerasitgrew helpingtohoist15000girdersand2.5millionrivetstotheexactspotwhere needed.Astonishinglythetowerwascompletedinonlytwoyearsandtwomonths forthreepercentlessthanits$1.5-millionbudgetwithnofatalitiesamong the250workers.??ThankstoEiffel’smasteryofdesignthetower givesthewindlittletoseize.Seenfromcertainanglestheoddlybeautiful traceryofintersectingironbeamsappearsalmosttransparent.Thetowerisso lightthatpressureonthefoundationsisonlyabout60poundspersquare inch—notmuchmorethanawell-fedgentlemanexertsonthefloorwhensittingin achair.WhichofthefollowingstatementsabouttheTowerisNotTrue?
Theentireprocessiscalledthegreenhouseeffectandmostofitiscausedbythe{{U}}prevalent{{/U}}greenhousegaswatervapor.
{{*HTML*}}阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为规定段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 ??Humanbeingshavelittledirectcontroloverthevolumeof waterintheatmosphere.Butweproduceothergreenhousegasesthatintensify theeffect.TheIPCCestimatesthatrisingCO2emissionsmostlyfrom burningfossilfuelsaccountforabout60percentofthewarmingobservedsince 1850Carbondioxideconcentrationhasbeenincreasingbyabout0.3percenta yearanditisnowabout30percenthigherthanitwasbeforetheindustrial revolution.2.??Therelentlessaccumulationofgreenhousegases hasledtheIPCCtoprojectthatinthenexthundredyearsaverageglobal temperatureswillriseby1to3.5degreesC.Thatmaynotseemlikemuch. Yetthelittleiceageananomalouscoldsnapthatpeakedfrom1570to1730 andforcedEuropeanfarmerstoabandontheirfieldswascausedbyachangeof onlyhalfadegree.3.??Thecompeermodelsusedtoproject greenhouseeffectsfarintothefuturearestillbeingimprovedtoaccommodatea rapidlygrowingfontofknowledge.Anditisremarkablydifficulttodetecta definitivesignatureofhumanactivityintheworld’swidelyfluctuating climaterecord.Toprojectfutureclimatepatternsscientistsusecomputer simulationsoftheinteractionsamonglandairwatericeandsunlight.These generalcirculationmodelsorGCMsconsistofequationsrepresentingtheknown lawsofatmosphericphysicsandoceancirculation.Foreachsectionofthe planettheycalculatetheeffectofsuchfactorsasairtemperaturethe Earth’srotationsurfacefrictionatsealevelrainfallandotherclimatic conditions.Aperfectmodelifgivenenoughinformationaboutconditionson Earthseveralhundredyearsagocouldprovideanexactdescriptionoftoday’s climate.Onlyveryrecentlyhavemodelsbeendevelopedthatarecapableof realisticallydepictingthepresentglobalclimatewithoutalotoftinkering— adjustmentsoftencalledfudgefactors.4.??Inpartthisis becauseonlythemostpowerfulcomputersarefastenoughtohandlethejoband inpartbecausesomeaspectsofclimatechangearestillmysterious.Evenavid proponentscautionthatGCMsarenotyettrustworthyforpredictingdetailed effectsinindividualregions:?Modelsdividetheworld’ssurfaceinto gridsthataretypicallyabout200milesonasidebutoceaneddiesstormsand cloudactivitytakeplaceonfarsmallerscales.Themodelersthereforehave tocompensatewithapproximations.AccordingtoKevinTrenberthchiefclimate ?analystattheNationalCenterforAtmosphericResearchinBoulder ColoradoallGCMsprojectglobalwarmingbuttheycanprovideonlyarangeof projectedtemperaturechange.5.??Theroleofcloudsand airbornesuspendedparticlescalledaerosolsisnoeasiertofactorintomodels. CloudsshadetheEarth’ssurfacepromotingcooling.Butdependingontheir altitudedensityandotherconditionstheycanalsotrapoutgoingheat promotingwarming.Aerosolsarealsoequallytricky.Someencouragewatervapor intheairtocondenseintotinydroplets.Theresultingcloudsaredenseand shinyshadingthesurfaceforweeks.Thusironically?ourownpollution mainlyfromcombustionofsulfur-bearingcoalandoilmaytemporarily ?havesparedussomeeffectsofglobalwarming.6.??Yetthe warmingcouldbepartofthenaturalrollercoasterofaverageglobalair temperatureswhichhavevariedbyasmuchas6degreesCduringthepast 150000years.Climatefluctuatesoverthousandsofyearsowingtoperiodic changesinthesun’senergyoutputandintheEarth’sorbitandtiltbothof whichinfluencetheamountandintensityofsunlightreachingthesurface.Proof oftheseclimateshiftscomesfromvariationsinthecompositionofice extractedincoresfromthedepthsofancientglaciersinGreenlandand Antarcticaandfromdifferencesamongmarineorganismsinsedimentcorestaken fromtheseafloor.Itispossiblethataround1860whenscientistsfirstbegan keepingdependabletemperaturerecordstheplanetwasstillrecoveringfromthe littleiceage.Thepresentwarmingmightbeacontinuationofthatrebound andenhancedgreenhousewarmingmaybesuperimposedonandcamouflagedbythat trend.Paragraph5______
{{*HTML*}}阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为规定段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 ??Humanbeingshavelittledirectcontroloverthevolumeof waterintheatmosphere.Butweproduceothergreenhousegasesthatintensify theeffect.TheIPCCestimatesthatrisingCO2emissionsmostlyfrom burningfossilfuelsaccountforabout60percentofthewarmingobservedsince 1850Carbondioxideconcentrationhasbeenincreasingbyabout0.3percenta yearanditisnowabout30percenthigherthanitwasbeforetheindustrial revolution.2.??Therelentlessaccumulationofgreenhousegases hasledtheIPCCtoprojectthatinthenexthundredyearsaverageglobal temperatureswillriseby1to3.5degreesC.Thatmaynotseemlikemuch. Yetthelittleiceageananomalouscoldsnapthatpeakedfrom1570to1730 andforcedEuropeanfarmerstoabandontheirfieldswascausedbyachangeof onlyhalfadegree.3.??Thecompeermodelsusedtoproject greenhouseeffectsfarintothefuturearestillbeingimprovedtoaccommodatea rapidlygrowingfontofknowledge.Anditisremarkablydifficulttodetecta definitivesignatureofhumanactivityintheworld’swidelyfluctuating climaterecord.Toprojectfutureclimatepatternsscientistsusecomputer simulationsoftheinteractionsamonglandairwatericeandsunlight.These generalcirculationmodelsorGCMsconsistofequationsrepresentingtheknown lawsofatmosphericphysicsandoceancirculation.Foreachsectionofthe planettheycalculatetheeffectofsuchfactorsasairtemperaturethe Earth’srotationsurfacefrictionatsealevelrainfallandotherclimatic conditions.Aperfectmodelifgivenenoughinformationaboutconditionson Earthseveralhundredyearsagocouldprovideanexactdescriptionoftoday’s climate.Onlyveryrecentlyhavemodelsbeendevelopedthatarecapableof realisticallydepictingthepresentglobalclimatewithoutalotoftinkering— adjustmentsoftencalledfudgefactors.4.??Inpartthisis becauseonlythemostpowerfulcomputersarefastenoughtohandlethejoband inpartbecausesomeaspectsofclimatechangearestillmysterious.Evenavid proponentscautionthatGCMsarenotyettrustworthyforpredictingdetailed effectsinindividualregions:?Modelsdividetheworld’ssurfaceinto gridsthataretypicallyabout200milesonasidebutoceaneddiesstormsand cloudactivitytakeplaceonfarsmallerscales.Themodelersthereforehave tocompensatewithapproximations.AccordingtoKevinTrenberthchiefclimate ?analystattheNationalCenterforAtmosphericResearchinBoulder ColoradoallGCMsprojectglobalwarmingbuttheycanprovideonlyarangeof projectedtemperaturechange.5.??Theroleofcloudsand airbornesuspendedparticlescalledaerosolsisnoeasiertofactorintomodels. CloudsshadetheEarth’ssurfacepromotingcooling.Butdependingontheir altitudedensityandotherconditionstheycanalsotrapoutgoingheat promotingwarming.Aerosolsarealsoequallytricky.Someencouragewatervapor intheairtocondenseintotinydroplets.Theresultingcloudsaredenseand shinyshadingthesurfaceforweeks.Thusironically?ourownpollution mainlyfromcombustionofsulfur-bearingcoalandoilmaytemporarily ?havesparedussomeeffectsofglobalwarming.6.??Yetthe warmingcouldbepartofthenaturalrollercoasterofaverageglobalair temperatureswhichhavevariedbyasmuchas6degreesCduringthepast 150000years.Climatefluctuatesoverthousandsofyearsowingtoperiodic changesinthesun’senergyoutputandintheEarth’sorbitandtiltbothof whichinfluencetheamountandintensityofsunlightreachingthesurface.Proof oftheseclimateshiftscomesfromvariationsinthecompositionofice extractedincoresfromthedepthsofancientglaciersinGreenlandand Antarcticaandfromdifferencesamongmarineorganismsinsedimentcorestaken fromtheseafloor.Itispossiblethataround1860whenscientistsfirstbegan keepingdependabletemperaturerecordstheplanetwasstillrecoveringfromthe littleiceage.Thepresentwarmingmightbeacontinuationofthatrebound andenhancedgreenhousewarmingmaybesuperimposedonandcamouflagedbythat trend.Paragraph3______
Sarah's{{U}}ancestors{{/U}}arrivedherefromFranceabouttwohundredyearsago.
Achild'sactionsshouldbemodifiedby{{U}}imposing{{/U}}asystemofrewards.
Thevoluntarydecisiontolabelseemstohavebeen{{U}}rewarded{{/U}}.
NewTechniquePromisesEarlierCancerDetection AnewtechniquecouldrevolutionizetheearlydetectionofcancergivingsufferersagreaterchanceofbeatingthediseaseAmericanscientistssaid.ResearchersattheMassachusettsInstituteofTechnologyhavedevisedanovelmethodof【51】changesinthenucleusofcellsintheearlieststagesofthedisease.Morethan85percentofallcancersoriginateintheepithelium上皮thatlinestheinternalsurfacesoforgans【52】thebody.Althoughthesearetreatable【53】theyarediagnosedinoneofthepreventablestagesearlybodydamagesarealmost【54】todetectsaidscientistFeld.Wepresentanewoptical-probe光学探子techniquebasedonlight-scatteringspectroscopy分光镜检查thatisable【55】detectprecancerousandearlycancerouscellsincell-richepitheliaheaddedinastatement. Thenewtechniquereliesonthefact【56】cellnucleichangeintheearlystagesofcancerandthedifferencesscatterlightinacharacteristicway.Untilnowthechangeswereonlydetectable【57】abiopsy活检wastakenthescientistssaid.Thenewtechnique【58】inthesciencejournalNaturecanbeusedinconjunctionwitharoutinecancerscreeningandsurveillancetechniquewhichusesanendoscope内窥镜—aflexibleopticalprobe【59】withcameraswhichisinsertedintoacavityinthebody—tocheck【60】cancers. Thescientistssaidthey【61】theirnewtechniqueinfourdifferentorgansduringroutineendoscopiccancerscreening.Thetipoftheopticalprobewasbroughtintocontactwiththetissuetobetestedandthescatteringoflightwasrecordedwithouttheneedforanytissuetobe【62】thescientistssaid.Ourresultsshowthatlight-scatteringspectroscopyhasthepotentialtodetectpre-cancerousbodydamagesandpreinvasivecancersthroughoutthebody.Thistechniqueshould【63】improvetheefficiencyofcancerscreeningandsurveillancethescientistssaid.Cancerisoneofthebiggest【64】inindustrializedcountries.【65】tofiguresfromtheWorldHealthOrganization10millionpeoplewerediagnosedwiththediseaseworldwidein1997andsixmilliondied.
NewTechniquePromisesEarlierCancerDetection AnewtechniquecouldrevolutionizetheearlydetectionofcancergivingsufferersagreaterchanceofbeatingthediseaseAmericanscientistssaid.ResearchersattheMassachusettsInstituteofTechnologyhavedevisedanovelmethodof【51】changesinthenucleusofcellsintheearlieststagesofthedisease.Morethan85percentofallcancersoriginateintheepithelium上皮thatlinestheinternalsurfacesoforgans【52】thebody.Althoughthesearetreatable【53】theyarediagnosedinoneofthepreventablestagesearlybodydamagesarealmost【54】todetectsaidscientistFeld.Wepresentanewoptical-probe光学探子techniquebasedonlight-scatteringspectroscopy分光镜检查thatisable【55】detectprecancerousandearlycancerouscellsincell-richepitheliaheaddedinastatement. Thenewtechniquereliesonthefact【56】cellnucleichangeintheearlystagesofcancerandthedifferencesscatterlightinacharacteristicway.Untilnowthechangeswereonlydetectable【57】abiopsy活检wastakenthescientistssaid.Thenewtechnique【58】inthesciencejournalNaturecanbeusedinconjunctionwitharoutinecancerscreeningandsurveillancetechniquewhichusesanendoscope内窥镜—aflexibleopticalprobe【59】withcameraswhichisinsertedintoacavityinthebody—tocheck【60】cancers. Thescientistssaidthey【61】theirnewtechniqueinfourdifferentorgansduringroutineendoscopiccancerscreening.Thetipoftheopticalprobewasbroughtintocontactwiththetissuetobetestedandthescatteringoflightwasrecordedwithouttheneedforanytissuetobe【62】thescientistssaid.Ourresultsshowthatlight-scatteringspectroscopyhasthepotentialtodetectpre-cancerousbodydamagesandpreinvasivecancersthroughoutthebody.Thistechniqueshould【63】improvetheefficiencyofcancerscreeningandsurveillancethescientistssaid.Cancerisoneofthebiggest【64】inindustrializedcountries.【65】tofiguresfromtheWorldHealthOrganization10millionpeoplewerediagnosedwiththediseaseworldwidein1997andsixmilliondied.
The{{U}}dispute{{/U}}betweenthefacultyandtheadministrationwasnotresolveduntilthefacultymembersgotbetterworkingconditions.
{{*HTML*}}阅读下面这篇短文短文后列出7个句子请根据短文的内容对每个句子做出判断如果该句提供的是正确信息请选择A如果该句提供的是错误信息请选择B如果该句的信息文章中没有提及请选择C ??Evenplantscanrunafever especiallywhenthey’reunderattackbyinsectsordisease.Butunlikehumans plantscanhavetheirtemperaturetakenfrom3000feetaway—straightup.A decadeagoadaptingtheinfrared红外线scanningtechnologydevelopedfor militarypurposesandothersatellitesphysicistStephenPaleycameupwitha quickwaytotakethetemperatureofcropstodeterminewhichonesareunder stress.Thegoalwastoletfarmersprecisely?targetpesticide杀虫剂 sprayingratherthanrainpoisononawholefieldwhichinvariably ?includesplantsthatdon’thavepest害虫problems.??Even betterPaley’sRemoteScanningServicesCompanycoulddetectcropproblems beforetheybecamevisibletotheeye.Mountedonaplaneflownat3000feetat nightaninfraredscannermeasuredtheheatemittedbycrops.ThedataWere transformedintoacolor-codedmapshowingwhereplantswererunningfevers. Farmerscouldthenspot-sprayusing50to70percentlesspesticidethanthey otherwisewould.??ThebadnewsisthatPaley’scompanyclosed downin1984afteronlythreeyears.Farmersresistedthenewtechnologyand long-termbackerswerehardtofind.Butwiththerenewedconcernabout pesticidesonproduceandrefinementsininfraredscanningPaleyhopestoget backintooperation.Agricultureexpertshavenodoubtthetechnologyworks. Thistechniquecanbeusedon75percentofagriculturallandintheUnited StatessaysGeorgeOertherofTexasA&M.RayJacksonwhorecentlyretired fromtheDepartmentofAgriculturethinksremoteinfraredcropscanningcould beadoptedbytheendofthedecade.ButonlyifPaleyfindsthefinancial backingwhichhefailedtoobtain10yearsago.Infraredscanningwillbeusedtoestimatethedamagetothecropsinthenearfuture.
{{*HTML*}}{{B}}第三篇{{/B}} ??Alexandre-GustaveBoenickhausenEiffel wasoneofthe19thcentury’smasterbuilders.Wieldingironinnewwayshe builtbridgesforthecentury’sburgeoningrailwaysinEuropeSouthAmericaand Indochina.AndaftersculptorFredericAugusteBartholdidesignedacolossal 151-footstatueofcoppersheetsin1871heturnedtoFrance’smagicianofiron foritsinternalskeleton.ThusEiffelwasinstrumentalincreatingtwoofthe best-knownmonumentstolibertyinthemodernworld—theStatueofLibertyand theEiffelTowerwhichwasbuilttomarkthecentennialoftheFrench Revolution.??DuringtheNazioccupationinWorldWarIIthe tower’spersonnelsabotagedtheelevators?todeprivetheenemyofaview ofParis.Hitlerwhorefusedtoclimbthe1710stepstothetopposedforhis picturewiththetowerinthebackground.Thecityknewliberationwasathand onAugust251944whentwoParisiansbravingbulletsricochetingthroughthe girderstoredowntheswastikaandhoistedthetricolor.??The towerillustratesEiffel’sgeniusformeticulousinnovativeengineering.After hehadsetmassivestonefoundationsbesidetheSeinefourgiantleaning pillarsencompassingfouracreswerejoined200feetupatthefirstplatform anironbeltoftrussesrunningfrompillartopillar.Thisbelthadtobe perfectlyhorizontal;ifoutoflinebyahairthestructurewouldtilt disastrouslyat1000feet.Eiffel’ssolution:hydraulicjacksembeddedineach 440-toncolumnenablinghimtofine-tuneitsangleperfectly.? ?NextEiffeldeployedcreepercranesthatclimbedthetowerasitgrew helpingtohoist15000girdersand2.5millionrivetstotheexactspotwhere needed.Astonishinglythetowerwascompletedinonlytwoyearsandtwomonths forthreepercentlessthanits$1.5-millionbudgetwithnofatalitiesamong the250workers.??ThankstoEiffel’smasteryofdesignthetower givesthewindlittletoseize.Seenfromcertainanglestheoddlybeautiful traceryofintersectingironbeamsappearsalmosttransparent.Thetowerisso lightthatpressureonthefoundationsisonlyabout60poundspersquare inch—notmuchmorethanawell-fedgentlemanexertsonthefloorwhensittingin achair.AccordingtothetextwhoisFrance’smagicianofiron?
热门题库
更多
理工类
卫生类
综合类
国际货运代理师
报关水平测试
报检员
物流员(四级)
助理物流师(三级)
物流师(二级)
高级物流师(一级)
物流案例分析
单证员基础理论与知识
单证员缮制与操作
国际货运代理理论与实务
外贸综合业务
外贸外语
湘公网安备 43130202000226号